实体创建引发错误“无法解析符号'save'”

Question

我有一个回购，一个实体，域和控制器。Intelliji将不编译，错误与LicenseSignmentEntity createdEntity=new ICENSeasSignmentEntity（新ICENSeasSignmentRepository.save（createEntity）有关；我不确定我做错了什么。谢谢

package com8.myname.service;
import com8.markmcilwrath.domain.LicenseAssignment;
import com8.markmcilwrath.domain.entity.LicenseAssignmentEntity;
import com8.markmcilwrath.domain.entity.LicenseEntity;
import com8.markmcilwrath.domain.entity.UserEntity;
import com8.markmcilwrath.repository.LicenseAssignmentRepository;
import javassist.NotFoundException;
import org.springframework.stereotype.Service;

import java.time.LocalDate;
import java.util.UUID;

@Service
public class LicenseAssignmentService {
private LicenseAssignmentRepository licenseAssignmentRepository;
private LicenseService licenseService;
private UserService userService;

public LicenseAssignmentService (LicenseAssignmentRepository licenseAssignmentRepository, LicenseService licenseService,
                                 UserService userService)
{
    this.licenseAssignmentRepository = licenseAssignmentRepository;
    this.licenseService = licenseService;
    this.userService = userService;
}

public LicenseAssignment save (String licenseKey, String userID, LocalDate assignmentDate, Boolean approved)
{
    LicenseEntity licenseEntity = null;
    try {
        licenseEntity = getLicenseEntity(licenseKey);
    } catch (NotFoundException e) {
        e.printStackTrace();
    }

    UserEntity userEntity = null;
    try {
        userEntity = getUserEntity(userID);
    } catch (NotFoundException e) {
        e.printStackTrace();
    }
    
    LicenseAssignmentEntity createEntity = new LicenseAssignmentEntity(UUID.randomUUID().toString(),
             licenseEntity,  userEntity,  assignmentDate, approved);
    LicenseAssignmentEntity createdEntity = new licenseAssignmentRepository.save(createEntity);
    return new LicenseAssignment(createdEntity.getAssignmentID(), createdEntity.getLicenseEntity().getLicenseKey(),
            createdEntity.getUserEntity().getUserId(), createdEntity.getAssignmentDate(), createdEntity.getApproved());
}

private  LicenseEntity getLicenseEntity(String licenseKey) throws NotFoundException
{
    return licenseService.getLicenseEntity(licenseKey);
}

private UserEntity getUserEntity (String userID) throws NotFoundException
{
    return userService.getUserEntity(userID);
}

}

Answer 1

您可以通过以下方式将数据保存到存储库。假设您必须使用任何spring boot保存post,这将是post服务接口-

public interface PostService {
    public void save(Post thePost);
}

这是我的PostRepository接口

public interface PostRepository extends JpaRepository<Post, Integer> {

}

在PostServiceImpl类中，通过调用save方法编写将数据保存到repository的逻辑。首先，我正在执行构造函数注入以添加存储库类型对象，然后调用JPararePository的save方法。

@Service
public class PostServiceImpl implements PostService {

    private PostRepository postRepository;

    @Autowired
    public PostServiceImpl(PostRepository thePostRepository) {
        this.postRepository = thePostRepository;

     @Override
    public void save(Post thePost) {
        postRepository.save(thePost);
    }

    }